Gum-wrapping machine.



H. J. KEMP?. -IGUM WRAPPING MACHINE. APPLICATION FILED mao. 22, 1911.

www. Paten@ Ap.. 7, me.

HENRY il. KEMPF, OF SPLRNGFELD, M ASSAGHUSETTS, .[LSSG'NUR, lvESNE ASSE@ l MENTS, T0 PACKAGE 'MACHINERY COMPANY, A CCEORATIOI 0l? MSSG-IUSE'IFSS.

Ap' "ication le December 22. 191i.

Specification of Letters Patent.

To all whom t may concern:

Be it known that ll, 'linen-:v J'. KEMPF, a citizen of the United States of America, residing` at -Spi.'in;lield, in the county ot Han'ipden and .ell/ete of lvlassachnsetts, have imented new and useful ln'ipi'men'ients in Gnni-li'apping lvachines, o'A which the tollowing is a specification.

This in'i'cntioi'i i-elatcs to package-Wrap ping machines and embodies certain in pi'oveinents and changes in construction in a machine el the type shown in U. S. patent to A. M. Price onV December-7, 1909, Ninn-1 to provide mechanism toi' 'folding the Wrapper ends over o1' n'ndey the packages as desired, or Yfoldingv sonic et the ends over and soine nndei' the packages.

The Wrapping' of chewing' gum the speciiic object olf the invention, although the mechanism can be applied broadly to Wrapping' machines in general.

ln the drawings, Figure l is a side view ot the asseinliiled machine, with parts broken away to bet-tei" show the relation of the parts. Fig'. 2 is ay iet-ail perspective view of the einbolifling mechanism.

Referring to the drawings, a i'epesents two wheels 'around which an endless belt travels. These belts have peripheral pockets b, these pockets. being; made to receive a single one of the articles of which a predetermined number is to be hunched togethein and delivered into a pocket of the Wheel c which' is also provided with peripheral pockets al. The wheels a, have a continuous rotative movement to the left, and the Wheel c, aj step by step movement to the right. If five articles are to be hunched together, tive pockets in the. Wheel a', will pass a given point between each step of the wheel c.

e referred to devices, inde cated :is a whole by a?, lcated and to the iic'htoi" the chain c Wheels a, 'will feed the sino-le a t; wi'appefinito the pccliets o. et thech suitable piece oi Wi'apping' niate l been first placed over said poel: a nippel' c, is brought te beati' am forward ef 'fotsaid piece .i edge ol the .latter bach ui ci' :in o ingI ce ge of the poel\:e't"r anc? time l the 'nippel' and overhang" g edg sides of the wrapper will be inoie o turned over the opposite sides ol. e An ai'in g, suitably formed t partially uptul'ned edges o t this time, swings over the 'li the wrapper and down heb.' edge', tllcn'siveeping forti/:1111, i direction of the movement olf presses the reanedge of the 't cated by h,- doivn against and holds it down until the 'tot the piece passes undeiv theend strip In, lying;` above the folds the 'civvai'd edge ol'f t over the othei1 edgewthe the propel' time. Theg'il on two traine pieces not si tend transversely ci the niac oi' left hand end olf this pl te little beyond and between. placed channeled plates o, lfi chain as shown, also conoci Wheel, and which receive the ein Wrapped sticks. @ne of these i plates is seen in Fig'. The ne sticks of gum, altes the ends of ivi-rappen? have been folded ever them, enen? and low these channeled plates 0, iv end folds oli the Wrapper ane held in rllhe mechanism, vhei'eby the ci wrapper are folded over: the ends tain number of sticks in ene ilii'f-Lctieii secutively and then folded over tbe end a single stick in the opposite il: on, ce cupiesa position between the two parte c and '0, and has a vertical movement straight up and down, due to the cam '1T and the link motion 18 and 9. The cam 1 7 lcontrolled by the shaft of the feedingr device al., so that a movement of the end-folding mechanisin up 0r down takes place for a certain movement of the feeding device. in wrapn gum itis seal te time the movements so that l. elicit lees end folds re- :ice

Elli@ versed from the preceding four. The. endfolding mechanism (See Flg. 2) just referred to, comprises two jaws, t and o, on each of the arms for folding the ends of the wrapper over or under `the sticks, the jaws being oppositely located and spaced apart, and in the vspace between the jaws is a roll w, having its end formed into a beveled flange m, there being just'room between the edge of this 'flanged head and the jaws't and o, abdve and below, to permit the extended ends of ,the wrapper to pass, and in passing, to have a folding line creased therein. The walls of the jaws t and o, are so formed with beveled or recurved surfaces y extending into the path of the ends of the wrappers, that after the crease line has been formed therein, these ends will be turned over the stick of gum, as the movement of the chain carries it between the jaws, itbeing understood that said beveled surface y, in the lower jaw fr, is so made as to turn the ends of the wrapper up and over the stick, and the like surface on the upper jaw t so formed as to turn them down and under the stick, It is therefore plain that by holding the end-folding mecha nism down 1n such position that the ends of the wrappers of a certain number of sticks will be turned under, and'then shifting said mechanism, will cause the next stick to have f the ends of its wrapper turned up and over.

`When a grou or bunch of the sticks have been gathere together by this transverse mechanism and shifted into one of the'pockets of the Wheel c, we shall have them arranged in said pocket so that the folded endsof the' wrapper oneacli stick of the bunch will be held against displacement during subsequent operations.

Referringv now to the transfer mechanism: it will be understood that this mechanism is in every detail like that` described in applieants y copending application hereinbefore referred to. It'conprises a curved trough 3, the upper end of which lies about opposite the point .where each pocket Z), will pass during the movement of the chain, while the lower end of the trough will be opposite a 'pocket Z in the wheel c, when that wheel is at rest. As eachlof the pockets, Z), passes the transfer trough, the hooked arm 4 on the rock-shaft 5 moves down and engages the edge of the stick of gum caught under the lip f of the pocket, the arm e (which up to this time has held 'the grim in the pocket) engagingwith an voperating cam (not shown) and swinging down against the action of a spring`v (not shown), provides 'a support for the. lower edge of the stick. n Owing tothe angle of the arm 4 and its relation to its axis, viz.,--the shaft 5, it willbe so moved that after `a slight downward' movement, as described, it will swmg forward and push the stlck of gum -past ,two spring clipsv 6, located in the path of the endsl of the stick and supported'on the beveled ends serving to hold up the several sticks as they are grouped together before being transferred as one piece into a pocket of the wheel o. ,As the iunitsA constituting the grou are one by one transferred as described,' rom the pockets b, of the chain, they are positioned under the end of another swinging frame 15,.mounted on a shaft 16 concentric with the curvedytransfer trough 3, and this frame just fits the space between the two sides of the latter, and the space between the ends of the two depending arms of the frame 9.

The frame l5 is at the proper time given a rocking movement by mechanism not shown herein but fully shown in the co-pending casereferred to. he sweep of the frame 15 is such as to carry the group ofv sticks through the trough 3 and push the same into a pocket (Z of the wheel c which, at the proper time, becomes stationary oppositel the delivery end of` the trough.

When the swinging frame 15 pushes the grouped -sticks of gum into the trough, it forces the ends thereof past the beveled ends of the clips 14:, which then snap back into position to receive other sticks of gum.

The wheel c, which receives the sticks of gum in groups in the pockets el, as described,

has mechanism associated' therewith to apply wrappers to thesticks, alittle narrower than the sticks, leaving .the ends of the latter exposed,all of which mechanism is identical with that described in said co-pending application. i

The pockets d are rectangular-'recesses extending across the Vperiphery of the wheel,

one of the sides of the-pockets consisting of a plate 20 spring-pressed towardithe opposite side,- and back of each pocket is a holle-W spoke 21 ofthe wheel, in whichis a plunger 22 having a rectangular head 23a The plungers 22 are actuatedby a cam not shown, the latter being so formed that at a point substantially opposite that at which t-he package of sticks of gum is placed in one of the pockets, the plungers 22 4will be successively actuated to expel the package into a straight receiving trough 50, and

from this point the head of the plungers will be maintained flush with the periphery i .of the wheel around to the point at which the lpocket is to receive *7, another package.

Just before' this point is' reached thec'amy frees the plunger and allows. it to be pushed Locales in radially by the package. rEhe outsideJ wrappers for the package 'of grouped sticks of gum are stacked in the container 5l. They are'delivered one by one, the cam 32 and parts 29 and 29a aiding in the operation, as described in the aforementioned application. llt will be seen that the length of the wrapper is such that its rear end will overlie, and extend some distance beyond the next following pocket, which is they pocket which will receive 'the package of gum this wrapper is destined to inclose, and that partof the wrapper which covers the area of the box d and extends somewhat to the rear thereof, is sullicient to nearly inclose three .sides of the package. lwhich has had placed therein a package of gum, arrives at the position directly under the shaft 3G on which the wheel o .is supported, and where the gumming devices are located, the nipper which holds the front end oitthe wrapper is tripped by cam 3Q and the wrapper allowed to fall forward vand downward as shown, to the end 'that when it reaches the gumming devices, it will hang straight down in 'front of the plate 37, and while in this position thc gum roll 38 carried by the arm 391, will be yswung up against the lower edge of the wrapper and the gum roll will remain in contact therewith until another rotative movement oil the wheel draws the wrapper forward, rotating the. gum roll and applying` gum from the point where the roll lirst touches the wrapper to the extreme. end thereof. 'ifo insure goed contact between the gum roll andthe wrappenthe plate 37 is hinged at its upper end and its lower end is held out by a spring t0 to moet the gum roll and yield slightly when the roll. comes in contact with it. After the gum roll has been applied to a wrapper, the gum roll is swung into the gum bonY 4t? and takes up another supply ot gum for the next .vrapper. T he gumming mechanism is well known and per sc 'forms no part oi the invention.

lrom the point where gum is'applied to the wrapper to the point of delivery of the sealed package, viZ.,-onefourth of one complete revolution ot the wheel ,Hthe periphery of the latter is encircled by a plate 39 concentric therewith and set asclose t-o the wheel as necessary to hold the gummed end ci the wrapper in position to be wrapped around the package when the latter is ejected from its pocket and pushed into the delivery trough 50, this ejection and trans- Before the pocketI fer servingto press the free gummed end of the wrapper against the opposite end thereof. This is made by the cam previously mentioned as described and the plunger 22 and at the mouth of the delivery trough two rolls t5 are mounted, transversely thereof, between which the package is forced, the lower of the two rolls being fixed and the upper being mounted in a plate 46, springpressed down against Athe packages as they are successively forced into the trough, thus pressing the .gummed end ot the package to a 4seat ron the package.

Claims.

"1. ln a wrapping machine, mechanism to successively fold a wrapper around articles fed into the machine, other mechanism for bunching together a predetermined number of such articles to constitute a package, together with end-folding mechanism interposed between said wrapping and bunching mechanism and means to'intermittently reciprocate said end-folding mechanism in a straight line to successively fold the ends of the wrappers inclosing said articles over the ends of certain of them in one direction and over the ends of certain others of said articles in the opposite direction.

2. ln a wrapping machine, mechanism to successively fold a wrapper around articles fed into the machine, other mechanism for bunching together a'predetermined number of such articles to constitute a package, together with end-folding mechanism interposed between the wrapping and launching mechanism and comp ising a member having a straight line movement across the path of the articles passing through the machine, means for `folding the ends of the wrappers in opposite directions over the ends of the articles being located in ditferent parts ot said member, means being provided to move said member at predetermined intervals.

3. ln a wrapping machine means to fold a wrapper about an article ted into the machine together with end-olding devices arranged when in one position to fold the ends ot the wrapper over the ends of the article in one direction, and means to shift said devices in a straight line to another position in which they are arranged to fold the-ends of the wrapper over the article in another direction.

HENRY J. KEMPF. illfitnesses z FRANKLIN G. NEAL, HARRY W. BOWEN. 

